Did you just lose several thousand Instagram followers? That'll be because all your selfie-snapping fans were fakes -- Instagram has just had a major purge, deleting millions of inactive and bot accounts. [Instagram]

So you've got a Jawbone UP. Congratulations. Now you’re rocking the dinky little fitness tracker on your wrist, you're well on the path towards healthier living. But did you know that, in addition to the standard UP app that is used to log your daily movement and sleep cycle, there's a whole suite of apps to make it even more useful?